Home / 789,967.71-1,090,154.88-445,876.08

Finding the Fourth Proportional to 789,967.71, 1,090,154.88 and 445,876.08

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Solution

The fourth proportional to 789,967.71, 1,090,154.88 and 445,876.08 is: 615,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,967.71 : 1,090,154.88 = 445,876.08 : x
  2. Step 2: Convert to fraction form
    789,967.71/1,090,154.88 = 445,876.08/x
  3. Step 3: Cross multiply
    789,967.71x = 1,090,154.88 × 445,876.08
  4. Step 4: Simplify right side
    789,967.71x = 486,073,984,487.27
  5. Step 5: Solve for x
    x = 486,073,984,487.27/789,967.71
  6. Step 6: Final answer
    x = 615,308.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.